The Lazio boss had dropped Zarate in recent weeks due to a lack of effort in training, but he could be needed on Sunday in Sicily as Klose is suspended.

“Zarate does not depend on Klose, he depends on himself. His situation depends entirely on him,” said Petkovic in a Press conference.

“Over the last few days he has seemed a little better, with the hunger to prove his worth and this gives me hope he wants to get back on the field. Then he must confirm his desire to start again.”

Hernanes and Cristian Ledesma return from suspension, but Ederson and Federico Marchetti are still sidelined.

“First I will decide who plays, then I’ll decide on the tactical system. I don’t know whether Hernanes will be in a more advanced role, considering Klose’s absence.

“In other games we have been more solid with Stefano Mauri close to the two strikers, so I still have to evaluate many things.

“Alvaro Gonzalez is tired, but so are others. It’s only normal, as we have played so many games this season. I am not so much worried about fatigue as the changes I have to make due to suspension or injury.”